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Elaeagnus pungens
''Elaeagnus pungens'' is a species of flowering plant in the family Elaeagnaceae, known by the common names thorny olive and silverthorn; also by the family name "oleaster". It is native to Asia, including China and Japan. It is present in the southeastern United States as an introduced species, a common landscaping and ornamental plant, and sometimes an invasive species.〔Gucker, Corey L. (2011). (''Elaeagnus pungens''. ) In: Fire Effects Information System, (). U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory. Retrieved 1 March 2012.〕
==Description==
''E. pungens'' is a dense, branching shrub which can reach over tall by wide. It sprouts prolifically from its stem, spreading out and twining into adjacent vegetation. Parts of the stem are covered in thorns which can be up to long. The evergreen, alternately-arranged leaves are up to long but under wide. The undersides are silvery white with brown flecks. Tubular flowers are borne in clusters of up to three.〔 The flowers are yellowish or white and are sweet-scented.〔(''Elaeagnus pungens''. ) Center for Aquatic and Invasive Plants, University of Florida IFAS. Retrieved 1 March 2012.〕 The fruit is a drupe up to long which contains one seed.〔 It is reddish with silver scales.〔 Blooming occurs in the fall and fruit develops during the spring. The plant grows quickly, with shoots growing over one meter per season. The growth has been described as "aggressive", with shoots extending many meters into neighboring treetops. The seeds are dispersed by birds.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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